Cristy | 594d277 | 2015-11-15 10:47:42 -0500 | [diff] [blame] | 1 | |
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Cristy | 594d277 | 2015-11-15 10:47:42 -0500 | [diff] [blame] | 55 | <p class="text-center"><a href="colormap.html#AcquireImageColormap">AcquireImageColormap</a> • <a href="colormap.html#CycleColormap">CycleColormap</a></p> |
cristy | 06f63f2 | 2012-10-31 00:50:07 +0000 | [diff] [blame] | 56 | |
Cristy | e93be68 | 2015-11-26 09:07:51 -0500 | [diff] [blame] | 57 | <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap_8c.html" id="AcquireImageColormap">AcquireImageColormap</a></h2> |
cristy | cecc949 | 2015-06-09 16:53:50 +0000 | [diff] [blame] | 58 | |
| 59 | <p>AcquireImageColormap() allocates an image colormap and initializes it to a linear gray colorspace. If the image already has a colormap, it is replaced. AcquireImageColormap() returns MagickTrue if successful, otherwise MagickFalse if there is not enough memory.</p> |
| 60 | |
| 61 | <p>The format of the AcquireImageColormap method is:</p> |
| 62 | |
| 63 | <pre class="text"> |
| 64 | MagickBooleanType AcquireImageColormap(Image *image,const size_t colors, |
| 65 | ExceptionInfo *exception) |
| 66 | </pre> |
| 67 | |
| 68 | <p>A description of each parameter follows:</p> |
| 69 | |
| 70 | <dd> |
| 71 | </dd> |
| 72 | |
| 73 | <dd> </dd> |
| 74 | <dl class="dl-horizontal"> |
| 75 | <dt>image</dt> |
| 76 | <dd>the image. </dd> |
| 77 | |
| 78 | <dd> </dd> |
| 79 | <dt>colors</dt> |
| 80 | <dd>the number of colors in the image colormap. </dd> |
| 81 | |
| 82 | <dd> </dd> |
| 83 | <dt>exception</dt> |
| 84 | <dd>return any errors or warnings in this structure. </dd> |
| 85 | |
| 86 | <dd> </dd> |
| 87 | </dl> |
Cristy | e93be68 | 2015-11-26 09:07:51 -0500 | [diff] [blame] | 88 | <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap_8c.html" id="CycleColormap">CycleColormap</a></h2> |
cristy | cecc949 | 2015-06-09 16:53:50 +0000 | [diff] [blame] | 89 | |
| 90 | <p>CycleColormap() displaces an image's colormap by a given number of positions. If you cycle the colormap a number of times you can produce a psychodelic effect.</p> |
| 91 | |
| 92 | <p>WARNING: this assumes an images colormap is in a well know and defined order. Currently Imagemagick has no way of setting that order.</p> |
| 93 | |
| 94 | <p>The format of the CycleColormapImage method is:</p> |
| 95 | |
| 96 | <pre class="text"> |
| 97 | MagickBooleanType CycleColormapImage(Image *image,const ssize_t displace, |
| 98 | ExceptionInfo *exception) |
| 99 | </pre> |
| 100 | |
| 101 | <p>A description of each parameter follows:</p> |
| 102 | |
| 103 | <dd> |
| 104 | </dd> |
| 105 | |
| 106 | <dd> </dd> |
| 107 | <dl class="dl-horizontal"> |
| 108 | <dt>image</dt> |
| 109 | <dd>the image. </dd> |
| 110 | |
| 111 | <dd> </dd> |
| 112 | <dt>displace</dt> |
| 113 | <dd> displace the colormap this amount. </dd> |
| 114 | |
| 115 | <dd> </dd> |
| 116 | <dt>exception</dt> |
| 117 | <dd>return any errors or warnings in this structure. </dd> |
| 118 | |
| 119 | <dd> </dd> |
| 120 | </dl> |
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